{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "476",
    "entityType": "User",
    "nonce": "0x5690da740b1c8adb43ea5dc48dfb67c47c29eab6e163f1d9d999da9ffe0c288a",
    "signature": "0xbf413e536bf0597fb88ac3cb947aaa38315ed97416edf11e6ea2c86350df07ec6bcf6b6cd3ad8b113f9464717cf1e190e021bf257e1fc6ec18ec06a577f18dd81b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}